72969446 has 16 divisors (see below), whose sum is σ = 121659408. Its totient is φ = 32541600.

The previous prime is 72969437. The next prime is 72969461. The reversal of 72969446 is 64496927.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72969446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30125 + ... + 32456.

It is an arithmetic number, because the mean of its divisors is an integer number (7603713).

Almost surely, 2^72969446 is an apocalyptic number.

72969446 is a deficient number, since it is larger than the sum of its proper divisors (48689962).

72969446 is a wasteful number, since it uses less digits than its factorization.

72969446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62647.

The product of its digits is 653184, while the sum is 47.

The square root of 72969446 is about 8542.2155205778. The cubic root of 72969446 is about 417.8756030402.

The spelling of 72969446 in words is "seventy-two million, nine hundred sixty-nine thousand, four hundred forty-six".